通过分散染料偶合组分中的羟基与对甲苯异氰酸酯的反应,合成了一系列含有氨基甲酸酯基的偶氮分散染料。新染料的结构已通过1 H NMR完全证实,1313 C NMR,FT-IR,MS和元素分析。分别测量了它们在聚酰胺纤维上的可见光吸收和色牢度特性,并与原始染料进行了比较。发现该新型染料表现出七色变色效果,具有几乎不变的吸收半带和较高的摩尔消光系数,牢度性能得到了很大的改善,特别是对于洗涤和升华牢度。含有双氨基甲酸酯基团的新型染料2d和2e在聚酰胺织物上具有出色的牢度性能。所测试的所有色牢度(包括耐水色牢度,升华色牢度,耐摩擦色牢度和耐光色牢度)的两种染料均达到4-5和5的比率。
Synthesis, characterization, and application of diester/diurethane tethered azo disperse dyes: A new strategy to improve dye's fastness properties
作者:Gaofeng Feng、Hong-Fei Qian、Gang Bai、Yan-Chun Liu、Ling-Ling Hu
DOI:10.1016/j.dyepig.2016.02.010
日期:2016.6
A series of new kinds of diester/diurethane tethered azo disperse dyes were synthesized through the reaction between the hydroxyl group in disperse dyes, such as C. I. Disperse Red 1 (1a), C. I. Disperse Red 13 (1b), and C. I. Disperse Blue 106 (1c), and terephthaloyl chloride or p-phenylene diisocyanate. Structures of these newdyes were fully characterized with NMR, MS, and FT-IR. Visible absorption